| (xiii) cleaning operations identified as essential
uses under the Montreal Protocol that the United States Environmental
Protection Agency (EPA) has allocated essential use allowances or
exemptions in 40 Code of Federal Regulations §82.4 (as amended
through May 10, 1995 (60 FR 24986)), including any future amendments
promulgated by the EPA.
(C) For cleaning solvents used in the flush cleaning
of parts, assemblies, and coating unit components, the used cleaning
solvent must be emptied into an enclosed container or collection system
that is kept closed when not in use or captured with wipers provided
they comply with the housekeeping requirements of subparagraph (E)
of this paragraph. Aqueous and semiaqueous cleaning solvents are exempt
from this subparagraph.
(D) All spray guns must be cleaned by one or more of
the following methods:
(i) enclosed spray gun cleaning system provided that
it is kept closed when not in use and leaks are repaired within 14
days from when the leak is first discovered. If the leak is not repaired
by the 15th day after detection, the solvent must be removed and the
enclosed cleaner must be shut down until the leak is repaired or its
use is permanently discontinued;
(ii) unatomized discharge of solvent into a waste container
that is kept closed when not in use;
(iii) disassembly of the spray gun and cleaning in
a vat that is kept closed when not in use; or
(iv) atomized spray into a waste container that is
fitted with a device designed to capture atomized solvent emissions.
(E) All fresh and used cleaning solvents used in solvent
cleaning operations must be stored in containers that are kept closed
at all times except when filling or emptying. Cloth and paper, or
other absorbent applicators, moistened with cleaning solvents must
be stored in closed containers. Cotton-tipped swabs used for very
small cleaning operations are exempt from this subparagraph. In addition,
the owner or operator shall implement handling and transfer procedures
to minimize spills during filling and transferring the cleaning solvent
to or from enclosed systems, vats, waste containers, and other cleaning
operation equipment that hold or store fresh or used cleaning solvents.
The requirements of this subparagraph are known collectively as housekeeping
measures. Aqueous, semiaqueous, and hydrocarbon-based cleaning solvents,
as defined in §115.420(c)(1) of this title, are exempt from this
subparagraph.
(6) Any surface coating operation in the Beaumont-Port
Arthur, Dallas-Fort Worth, El Paso, and Houston-Galveston-Brazoria
areas that becomes subject to §115.421 of this title by exceeding
the exemption limits in §115.427 of this title (relating to Exemptions)
is subject to the provisions in §115.421 of this title, even
if throughput or emissions later fall below exemption limits unless
emissions are maintained at or below the controlled emissions level
achieved while complying with §115.421 of this title and one
of the following conditions is met.
(A) The project that caused the throughput or emission
rate to fall below the exemption limits in §115.427 of this title
must be authorized by a permit, permit amendment, standard permit,
or permit by rule required by Chapter 116 or Chapter 106 of this title
(relating to Control of Air Pollution by Permits for New Construction
or Modification; and Permits by Rule). If a permit by rule is available
for the project, the owner or operator shall continue to comply with §115.421
of this title for 30 days after the filing of documentation of compliance
with that permit by rule.
(B) If authorization by permit, permit amendment, standard
permit, or permit by rule is not required for the project, the owner
or operator shall provide the executive director 30 days notice of
the project in writing.
(7) In the Dallas-Fort Worth and Houston-Galveston-Brazoria
areas, the owner or operator of a paper surface coating line subject
to this division shall implement the following work practices to limit
VOC emissions from storage, mixing, and handling of cleaning and cleaning-related
waste materials.
(A) All VOC-containing cleaning materials must be stored
in closed containers.
(B) Mixing and storage containers used for VOC-containing
materials must be kept closed at all times except when depositing
or removing these materials.
(C) Spills of VOC-containing cleaning materials must
be minimized.
(D) VOC-containing cleaning materials must be conveyed
from one location to another in closed containers or pipes.
(E) VOC emissions from the cleaning of storage, mixing,
and conveying equipment must be minimized.
|
| Source Note: The provisions of this §115.422 adopted to be effective February 19, 1990, 15 TexReg 549; amended to be effective July 17, 1991, 16 TexReg 3726; amended to be effective November 1, 1991, 16 TexReg 5839; amended to be effective August 1, 1992, 17 TexReg 4683; amended to be effective December 3, 1993, 18 TexReg 8538; amended to be effective May 27, 1994, 19 TexReg 3703; amended to be effective March 7, 1996, 21 TexReg 1548; amended to be effective May 22, 1997, 22 TexReg 4213; amended to be effective April 7, 1998, 23 TexReg 3503; amended to be effective July 20, 2000, 25 TexReg6752; amended to be effective May 16, 2002, 27 TexReg 4113; amended to be effective December 29, 2011, 36 TexReg 8897; amended to be effective June 25, 2015, 40 TexReg 3907 |
